Question: Which sovereign states of the Panic of 1907 are boroughs.
Paraphrase: Which 1907 Panic sovereign states are boroughs.
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q844449 wdt:P17 ?X . ?X wdt:P150 ?answer}
Answer: California, Alabama, Maine, New Hampshire, Massachusetts, Connecticut, Hawaii, Alaska, Florida, Arizona, Oregon, Utah, Michigan, Illinois, North Dakota, South Dakota, Montana, Wyoming, Idaho, Washington, Nevada, Colorado, Virginia, West Virginia, New York, Rhode Island, Maryland, Delaware, Ohio, Pennsylvania, New Jersey, Indiana, Georgia, Texas, North Carolina, South Carolina, Mississippi, Tennessee, New Mexico, Minnesota, Wisconsin, Iowa, Nebraska, Kansas, Missouri, Louisiana, Kentucky, Arkansas, Oklahoma, Vermont